Efficient electroplating tungsten filament cold drawing continuous treatment method and treatment device

Abstract

The invention discloses a high-efficiency electroplating tungsten filament cold drawing continuous treatment method and a high-efficiency electroplating tungsten filament cold drawing continuous treatment device. The tungsten wire is subjected to surface oil removal operation in an electrolysis mode, it is ensured that the surface of the tungsten wire is clean, an electrolytic solution is sodium hydroxide, the content of the sodium hydroxide is 1-100 g / L, the temperature is 1-75 DEG C, the current density is 1-10 A / dm < 2 >, and the ultrasonic current is 1-10 A; the invention relates to the technical field of tungsten filament treatment, and in the scheme, an electroplated layer is adopted to replace a traditional cold drawing mode of a graphite lubricating layer, so that the surface friction coefficient of a tungsten filament is smaller, the drawing efficiency is greatly improved, the drawing speed is broken through to 360-400 m / min, and the production efficiency is remarkably improved; meanwhile, the service life of the die is prolonged, the average drawing length of a single set of die exceeds 1000km, and the production cost is greatly reduced; in addition, the cold-drawn tungsten filament ring warp is easy to adjust, the finished product ring warp is generally larger than or equal to 80 mm, the rate of finished products exceeds 90%, and high-yield and high-quality production is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of tungsten wire processing, in particular to an efficient electroplated tungsten wire cold drawing continuous processing method and a processing device. Background Art

[0002] Tungsten wire is a slender filament made of tungsten metal and is widely used in various high-temperature and high-strength environments. The melting point of tungsten is very high, making tungsten wire applicable in many working environments that require high temperature resistance;

[0003] During the processing and production of tungsten wire, it is necessary to process the tungsten wire by drawing according to the production requirements of the tungsten wire. In the current tungsten wire hot processing production system, a high-temperature curing process is used to coat graphite microparticles on the surface of the tungsten wire as a solid lubricant. This process has the following technical bottlenecks:

[0004] Graphite particles exhibit non-uniform dispersion characteristics on the substrate surface, resulting in deviations in the thickness of the microscopic lubricating layer, directly affecting the dimensional tolerance between product batches; and limited by the traditional heat conduction method, the current peak drawing speed only reaches 150 m / min. Due to the influence of graphite particles, the friction coefficient fluctuates, so the effective working life of the die is seriously affected, and at the same time, the product quality is affected. The comprehensive yield rate ≤ 75%; it severely restricts its application expansion in high-end fields such as photovoltaic diamond wires;

[0005] Moreover, in the current cold drawing equipment, the die is mostly fixed by a bolt mechanical locking method, and multiple bolts need to be disassembled one by one, which takes a long time. The interface between the die and the equipment lacks a standardized design. When replacing, the alignment accuracy needs to be adjusted repeatedly, and the die needs to be replaced frequently, resulting in a reduction in the comprehensive utilization rate of the equipment. In addition, the loading and unloading of the take-up wheel requires the cooperation of multiple workers. The overall disassembly operation is relatively cumbersome, and it is necessary to manually carry heavy wheel bodies, which easily causes the take-up wheel to fall and poses a work risk. In view of this, in response to the above problems, there may already be technical means to solve them in the prior art, but this case wants to provide an alternative or replacement technical solution. Summary of the Invention

[0006] The purpose of the present invention is to solve the above problems and design an efficient electroplated tungsten wire cold drawing continuous processing method and a processing device, which solve the problem that the existing method of processing tungsten wire by drawing, in the current tungsten wire hot processing production system, a high-temperature curing process is used to coat graphite microparticles on the surface of the tungsten wire as a solid lubricant. This process has the following technical bottlenecks:

[0007] Graphite particles exhibit non-uniform dispersion characteristics on the substrate surface, resulting in deviations in the thickness of the microscopic lubricating layer, directly affecting the dimensional tolerance between product batches; and restricted by traditional heat conduction methods, the current peak drawing speed only reaches 150 m / min. Due to the influence of graphite particles, the friction coefficient fluctuates, so the effective working life of the die is severely affected, and at the same time, the product quality is affected, and the comprehensive yield rate ≤ 75%; it severely restricts its application expansion in high-end fields such as photovoltaic diamond wires;

[0008] Moreover, for the current cold drawing equipment, the die is mostly fixed by the bolt mechanical locking method, and multiple bolts need to be disassembled one by one, which takes a long time. The interface between the die and the equipment lacks standardized design. When replacing, the alignment accuracy needs to be repeatedly adjusted, and the die needs to be frequently replaced, resulting in a reduction in the comprehensive utilization rate of the equipment. In addition, the loading and unloading of the take-up wheel requires the cooperation of multiple workers, and the overall disassembly operation is relatively cumbersome. And it is necessary for personnel to carry the heavy wheel body, which is likely to cause the take-up wheel to fall, posing a problem of work risk.

[0009] To achieve the above object, the technical solution of the present invention is: an efficient electroplated tungsten wire cold drawing continuous treatment method, including the following steps;

[0010] Step S1: Ultrasonic alkali washing, the surface degreasing operation of tungsten wire is carried out by electrolysis to ensure that the surface of tungsten wire is clean. The electrolytic solution is sodium hydroxide, with a content of 1 - 100 g / L, a temperature of 1 - 75 °C, a current density of 1 - 10 A / dm 2 , and the ultrasonic current is 1 - 10 A;

[0011] Step S2: Nickel plating, the composition of the plating solution: 300 - 450 g / L nickel sulfamate, 0 - 15 g / L nickel chloride, 30 - 45 g / L boric acid. The tungsten wire is activated in an acidic activation solution, washed with water, and then charged into the tank. The pH of the tank solution is 5 - 5.5, the temperature is 18 - 35 °C, and nickel plating is carried out at a current of 1 - 30 A / dm 2 ;

[0012] Step S3: Copper plating, as an intermediate layer to promote the subsequent zinc diffusion, the composition of the plating solution: copper pyrophosphate (10 - 80 g / L), potassium pyrophosphate (200 - 300 g / L), pyrophosphoric acid;

[0013] Process parameters: pH is adjusted to 7.0 - 9.0, temperature is 30 - 50 °C, current density is 5 - 15 A / dm 2 .

[0014] Step S4: Zinc plating, the composition of the plating solution: zinc sulfate (300 - 600 g / L), sulfuric acid;

[0015] Process parameters: pH 1.0 - 3.0, temperature 30 - 50 °C, current density 20 - 40 A / dm 2 ;

[0016] Step S5: Thermal diffusion, aiming to form a uniform Cu-Zn alloy layer (copper);

[0017] Process parameters: temperature 200 - 600 °C, copper content in the Cu-Zn alloy layer 50 - 100%;

[0018] Step S6: Cold drawing, aiming to refine the wire diameter and improve the strength;

[0019] Process parameters: single-pass reduction rate: 6% - 15%, total reduction rate ≥ 50%; drawing speed: 200 - 500 m / min.

[0020] Preferably, in the step S5, after the thermal diffusion treatment, the hard zinc oxide on the surface layer of the Cu-Zn alloy is cleaned with phosphoric acid or sulfuric acid solution.

[0021] Preferably, in the step S5, first, the device is fixed to the designated position through the bottom plate, an acidic solution is injected into the cleaning tank, and the electroplated tungsten wire is sequentially passed through the tension adjustment structure, the drawing adjustment structure, and the winding traction structure, and connected to the winding end.

[0022] Preferably, in the step S5, the tungsten wire is immersed in the pickling solution to continuously remove the Cu-Zn alloy oxide layer, ensure that the drawing plate is aligned with the auxiliary roller shaft, assist in guiding the drawn tungsten wire, install six winding wheels on the transmission rod, fix them with the clamping assembly, and start the winding motor to complete the traction and winding.

[0023] An efficient electroplated tungsten wire cold drawing continuous treatment device, including a bottom plate, on one side of the upper end of the bottom plate, a cleaning box body is installed, a tension adjustment structure is installed in the cleaning box body, an adjustment drawing structure is installed at the center of the upper end of the bottom plate, and a winding traction structure is installed on the other side of the upper end of the bottom plate;

[0024] The tension adjustment structure includes: two guide frames, two fixed guide roller groups, two lifting guide grooves, two sliding blocks, a moving guide roller group, two driving frames, two connecting frames, two springs, two driving blocks, two driving grooves, four bearing plates, two lead screws, and two lifting driving motors;

[0025] The two guiding frames are respectively installed on both sides of the upper end of the cleaning box body. Both ends of the two fixed guiding roller groups are respectively movably inserted into the two guiding frames. The two lifting guiding grooves are respectively installed on the inner side wall surfaces of the two sides of the cleaning box body. The two sliding blocks are respectively movably inserted into the two lifting guiding grooves. Both ends of the moving guiding roller group are respectively movably inserted into the two sliding blocks. The two driving frames are respectively installed on the outer side walls of both sides of the cleaning box body. One ends of the two connecting frames are respectively connected to the top ends of the two sliding blocks, and the other ends movably penetrate through the upper wall surfaces of the two driving frames. One ends of the two springs are respectively connected to the two connecting frames. The two driving blocks are respectively movably inserted into the two driving frames. The two driving grooves are respectively opened on the side walls of the two driving frames. One ends of the two driving blocks respectively movably penetrate through the two driving grooves. The four bearing plates are respectively installed at the upper and lower ends of the side walls of the two driving frames. Both ends of the two lead screws are respectively movably inserted into the four bearing plates. One ends of the two driving blocks are respectively movably sleeved on the upper ends of the two lead screws. The two lifting driving motors are respectively installed at the lower ends of the two driving frames, and the driving ends are respectively connected to the bottom ends of the two lead screws.

[0026] Preferably, the adjusting and pulling structure includes: a support frame, two support grooves, a mounting frame, a plurality of pulling plates, four positioning protrusions, a positioning plate, two positioning bolts, a connecting plate, two guiding strips, two positioning blocks, two adjusting bolts, and an auxiliary roller shaft;

[0027] The support frame is fixedly installed on one side of the upper end of the bottom plate and is located on one side of the cleaning box body. The two support grooves are respectively installed on the inner side walls of both sides of the support frame. Both ends of the mounting frame are respectively movably inserted into the two support grooves. A plurality of the pulling plates are all movably inserted into the two mounting frames. The four positioning protrusions are respectively installed on both sides of the upper end of the mounting frame. The positioning plate is located above the mounting frame, and both ends are respectively movably inserted between the four positioning protrusions. The two positioning bolts are respectively movably inserted into the upper wall surfaces of both sides of the positioning plate and the mounting frame. One end of the connecting plate is connected to the lower end of the mounting frame. The two guiding strips are respectively installed on the outer side walls of both sides of the support frame. The two positioning blocks are respectively movably sleeved on the outer sides of the two guiding strips and are respectively connected to both ends of the connecting plate. The two adjusting bolts are respectively movably inserted into the side walls of the two positioning blocks, and one end is in contact with the outer walls of the two guiding strips. The auxiliary roller shaft is fixedly installed on the upper end of the bottom plate and is located on one side of the support frame.

[0028] Preferably, the winding and traction structure includes: four bearing blocks, two mounting shafts, two winding frames, six winding motors, six connecting discs, six transmission rods, six winding wheels, a flipping driving assembly, and six clamping and fixing assemblies;

[0029] The four bearing blocks are respectively installed at the four corners of the upper end of the bottom plate. Both ends of the two mounting shafts are respectively movably inserted into the four bearing blocks. Both sides of the lower ends of the two winding frames are respectively connected to both ends of the two mounting shafts. Six winding motors are respectively installed on the side walls of the two winding frames. Six connecting plates are respectively installed at the driving ends of the six winding motors. Six transmission rods are respectively installed on the side walls of the six connecting plates. Six winding wheels are respectively movably sleeved on the upper ends of the six transmission rods. One end of the flipping drive assembly is installed at the center of the upper end of the bottom plate, and the other end is respectively connected to the centers of the two winding frames. One ends of the six clamping and fixing assemblies are respectively installed on the side walls of the six connecting plates, and the other ends are respectively installed on one sides of the six winding wheels.

[0030] Preferably, the flipping drive assembly includes: two first hinge seats, two second hinge seats and two flipping cylinders;

[0031] Both of the two first hinge seats are installed on the upper end of the bottom plate. The two second hinge seats are respectively installed at the centers of the side walls of the two winding frames. Both ends of the two flipping cylinders are respectively connected to the two first hinge seats and the two second hinge seats.

[0032] Preferably, each of the six clamping and fixing assemblies includes: a fixed seat, a clamping shaft, a clamping rod, a clamping protrusion and six clamping frames;

[0033] The fixed seat is fixedly installed on the side wall of the connecting plate. Both ends of the clamping shaft are respectively movably inserted into both sides of the fixed seat. The clamping rod is fixedly inserted into the clamping shaft. The clamping protrusion is fixedly installed on the side wall of one end of the clamping rod. The six clamping frames are all installed on the side wall of the winding wheel. The clamping protrusion is movably inserted into one of the clamping frames.

[0034] Preferably, the transmission rod is a hexagonal transmission rod, and a hexagonal cavity is machined at the connection position between the winding wheel and the transmission rod.

[0035] An efficient electroplated tungsten wire cold drawing continuous treatment method and treatment device manufactured by using the technical solution of the present invention. In this case, the cold drawing method using an electroplated layer to replace the traditional graphite lubricating layer can make the surface friction coefficient of the tungsten wire smaller, greatly increase the drawing efficiency, break through the drawing speed to 360 - 400 m / min, and significantly improve the production efficiency; at the same time, extend the service life of the die, the average drawing length of a single set of dies exceeds 1000 km, and greatly reduce the production cost; in addition, the diameter of the cold drawn tungsten wire coil is easy to adjust, the diameter of the finished product coil is generally ≥ 80 mm, and the finished product rate exceeds 90%, realizing high-yield and high-quality production;

[0036] The processing device adopted can make the tungsten wire come into full contact with the cleaning liquid in the cleaning box through the set tension adjustment structure, so as to clean the hard zinc oxide on the surface of the Cu-Zn alloy. At the same time, through the set spring, the overall tension effect of the tungsten wire can be fully ensured. And the adopted adjustment and drawing structure installs multiple drawing plates in a synchronous embedding manner, and the overall height can be adjusted in real time. Therefore, the rapid replacement of the mold can be realized. And through the cooperation of the set positioning bolts and the positioning plate, the independent replacement of multiple molds can be realized, or the installation frame can be disassembled as a whole to replace the molds in batches. The adopted winding and traction structure uses an embedded fixing method, which can realize the rapid replacement of the winding wheel. And through the set clamping and fixing component, by pressing one side of the clamping and fixing component, the quick separation of the connecting disc and the winding wheel can be achieved. At the same time, with the flipped installation method, the rapid replacement of the winding wheel can be realized through the hoisting structure, ensuring the handling stability after the tungsten wire drawing is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 FIG. 6 is a front perspective structural schematic diagram of an efficient electroplated tungsten wire cold drawing continuous processing device according to the present invention.

[0038] Figure 2 FIG. 7 is a rear perspective structural schematic diagram of an efficient electroplated tungsten wire cold drawing continuous processing device according to the present invention.

[0039] Figure 3 FIG. 8 is a bottom perspective structural schematic diagram of an efficient electroplated tungsten wire cold drawing continuous processing device according to the present invention.

[0040] Figure 4 FIG. 9 is a partial top view structural schematic diagram of an efficient electroplated tungsten wire cold drawing continuous processing device according to the present invention.

[0041] Figure 5 FIG. 10 is a sectional structural schematic diagram of the winding and traction structure of an efficient electroplated tungsten wire cold drawing continuous processing device according to the present invention.

[0042] Figure 6 FIG. 11 is a sectional structural schematic diagram of the tension adjustment structure of an efficient electroplated tungsten wire cold drawing continuous processing device according to the present invention.

[0043] Figure 7 FIG. 12 is an enlarged structural schematic diagram of the position “A” in an efficient electroplated tungsten wire cold drawing continuous processing device according to the present invention. Figure 1 in FIG.

[0044] Figure 8 FIG. 13 is an enlarged structural schematic diagram of the position “B” in an efficient electroplated tungsten wire cold drawing continuous processing device according to the present invention. Figure 2 in FIG.

[0045] In the figure: 1. Bottom plate, 2. Cleaning box body, 3. Guide frame, 4. Fixed guide roller group, 5. Lifting guide groove, 6. Sliding block, 7. Moving guide roller group, 8. Driving frame, 9. Connecting frame, 10. Spring, 11. Driving block, 12. Driving groove, 13. Bearing plate, 14. Lead screw, 15. Lifting driving motor, 16. Support frame, 17. Support groove, 18. Installation frame, 19. Pulling plate, 20. Positioning protrusion, 21. Positioning plate, 22. Positioning bolt, 23. Connecting plate, 24. Guide strip, 25. Positioning block, 26. Adjusting bolt, 27. Auxiliary roller shaft, 28. Bearing block, 29. Installation shaft, 30. Winding frame, 31. Winding motor, 32. Connecting disc, 33. Transmission rod, 34. Winding wheel, 35. First hinge seat, 36. Second hinge seat, 37. Tipping cylinder, 38. Fixed seat, 39. Clamping shaft, 40. Clamping rod, 41. Clamping protrusion, 42. Clamping frame. Specific implementation mode

[0046] The present invention will be specifically described below with reference to the accompanying drawings. As Figure 1-8 shown, an efficient electroplated tungsten wire cold drawing continuous treatment method and treatment device.

[0047] Embodiment: An efficient electroplated tungsten wire cold drawing continuous treatment method includes the following steps;

[0048] Step S1: Ultrasonic alkaline cleaning, the surface degreasing operation of tungsten wire is carried out by electrolysis to ensure that the surface of tungsten wire is clean. The electrolytic solution is sodium hydroxide with a content of 1-100 g / L, a temperature of 1-75 °C, and a current density of 1-10 A / dm 2 , and the ultrasonic current is 1-10 A;

[0049] Step S2: Nickel plating, the composition of the plating solution: 300-450 g / L nickel sulfamate, 0-15 g / L nickel chloride, 30-45 g / L boric acid. The tungsten wire is activated in an acidic activation solution, washed with water and then charged into the tank. The pH of the tank solution is 5-5.5, the temperature is 18-35 °C, and nickel plating is carried out at a current of 1-30 A / dm 2 .

[0050] Step S3: Copper plating, as an intermediate layer to promote the subsequent zinc diffusion, the composition of the plating solution: copper pyrophosphate (10-80 g / L), potassium pyrophosphate (200-300 g / L), pyrophosphoric acid;

[0051] Process parameters: pH to 7.0-9.0, temperature 30-50 °C, current density 5-15 A / dm 2 .

[0052] Step S4: Zinc plating, the composition of the plating solution: zinc sulfate (300-600 g / L), sulfuric acid;

[0053] Process parameters: pH 1.0 - 3.0, temperature 30 - 50 °C, current density 20 - 40 A / dm 2 ;

[0054] Step S5: Thermal diffusion, aiming to form a uniform Cu - Zn alloy layer (copper);

[0055] Process parameters: temperature 200 - 600 °C, copper content in the Cu - Zn alloy layer 50 - 100%;

[0056] Step S6: Cold drawing, aiming to refine the wire diameter and improve the strength;

[0057] Process parameters: single - pass compression ratio: 6% - 15%, total compression ratio ≥ 50%; drawing speed: 200 - 500 m / min.

[0058] In step S5, after the thermal diffusion treatment, the hard zinc oxide on the surface of the Cu - Zn alloy is cleaned with phosphoric acid or sulfuric acid solution.

[0059] In step S5, first, the device is fixed to the specified position through the bottom plate 1, an acidic solution is injected into the cleaning box, and the electroplated tungsten wire is sequentially passed through the tension adjustment structure, drawing adjustment structure, and winding traction structure, and connected to the winding end.

[0060] In step S5, the tungsten wire is immersed in the pickling solution to continuously remove the Cu - Zn alloy oxide layer, ensure that the drawing plate 19 is aligned with the auxiliary roller shaft 27, assist in guiding the drawn tungsten wire, install six winding wheels 34 on the transmission rod 33, fix them with the clamping component, and start the winding motor 31 to complete the traction and winding.

[0061] An efficient electroplated tungsten wire cold drawing continuous treatment device, including a bottom plate 1, a cleaning box body 2 is installed on one side of the upper end of the bottom plate 1, a tension adjustment structure is installed inside the cleaning box body 2, a drawing adjustment structure is installed at the center of the upper end of the bottom plate 1, and a winding traction structure is installed on the other side of the upper end of the bottom plate 1;

[0062] It should be noted that when cold - drawing the tungsten wire, first, the device is placed at the specified position through the bottom plate 1, then an acidic solution is injected into the cleaning box body 2, and then one end of the tungsten wire after the electroplating treatment is sequentially passed through the tension adjustment structure, drawing adjustment structure, and winding traction structure for connection. By the operation of the winding traction structure, one end of the tungsten wire is pulled, and through the set drawing adjustment structure, the tungsten wire is drawn to change its diameter.

[0063] The tension adjustment structure includes: two guide frames 3, two fixed guide roller groups 4, two lifting guide grooves 5, two sliding blocks 6, a moving guide roller group 7, two driving frames 8, two connecting frames 9, two springs 10, two driving blocks 11, two driving grooves 12, four bearing plates 13, two lead screws 14, and two lifting driving motors 15;

[0064] The two guide frames 3 are respectively installed on both sides of the upper end of the cleaning box body 2. The two ends of the two fixed guide roller groups 4 are respectively movably installed in the two guide frames 3. The two lifting guide grooves 5 are respectively installed on the inner side wall surfaces of the two sides of the cleaning box body 2. The two sliding blocks 6 are respectively movably installed in the two lifting guide grooves 5. The two ends of the moving guide roller group 7 are respectively movably installed in the two sliding blocks 6. The two driving frames 8 are respectively installed on the outer side walls of the two sides of the cleaning box body 2. One ends of the two connecting frames 9 are respectively connected to the tops of the two sliding blocks 6, and the other ends movably penetrate through the upper wall surfaces of the two driving frames 8. One ends of the two springs 10 are respectively connected to the two connecting frames 9. The two driving blocks 11 are respectively movably installed in the two driving frames 8. The two driving grooves 12 are respectively opened on the side walls of the two driving frames 8. One ends of the two driving blocks 11 respectively movably penetrate through the two driving grooves 12. The four bearing plates 13 are respectively installed at the upper and lower ends of the side walls of the two driving frames 8. The two ends of the two lead screws 14 are respectively movably installed in the four bearing plates 13. One ends of the two driving blocks 11 are respectively movably sleeved on the upper ends of the two lead screws 14. The two lifting driving motors 15 are respectively installed at the lower ends of the two driving frames 8, and the driving ends are respectively connected to the bottom ends of the two lead screws 14.

[0065] It should be noted that when cleaning the surface of the tungsten wire, first drive the two lifting driving motors 15 outside the cleaning box body 2 to work, drive the two lead screws 14 to rotate in the four bearing plates 13, change the positions of the two driving blocks 11 in the two driving frames 8 and the two driving grooves 12 until the two driving blocks 11 are raised to the uppermost end. Subsequently, pass one end of the tungsten wire through the two fixed guide roller groups 4 and the moving guide roller group 7 in sequence. Through the two guide frames 3 provided, the support stability of the two fixed guide roller groups 4 for the tungsten wire can be ensured. Subsequently, reverse-drive the two lifting driving motors 15. When the two driving blocks 11 move downward, under the connection action of the two springs 10, one ends of the two connecting frames 9 move downward in the two driving frames 8. At the same time, under the connection action of the two connecting frames 9, drive the two sliding blocks 6 to move downward in the two lifting guide grooves 5 until the two sliding blocks 6 and the moving guide roller group 7 are lowered to the specified position. Under the guiding action of the moving guide roller group 7, the tungsten wire is immersed in the pickling liquid in the cleaning box body 2, and continuous pickling operation is performed on the tungsten wire, which can effectively remove the hard zinc oxide on the surface layer of the Cu-Zn alloy. And under the connection action of the two springs 10, while ensuring the tensioning effect on the tungsten wire, the moving guide roller group 7 can be effectively buffered to avoid damage to the tungsten wire due to excessive force.

[0066] In the specific implementation process, the drawing structure includes: a support frame 16, two support grooves 17, a mounting frame 18, a plurality of drawing plates 19, four positioning protrusions 20, a positioning plate 21, two positioning bolts 22, a connecting plate 23, two guide bars 24, two positioning blocks 25, two adjusting bolts 26, and an auxiliary roller 27;

[0067] The support frame 16 is fixedly installed on one side of the upper end of the bottom plate 1 and is located on one side of the cleaning box 2. The two support grooves 17 are respectively installed on the inner walls of both sides of the support frame 16. The two ends of the mounting frame 18 are respectively movably fitted into the two support grooves 17. A plurality of drawing plates 19 are all movably fitted into the two mounting frames 18. The four positioning protrusions 20 are respectively installed on both sides of the upper end of the mounting frame 18. The positioning plate 21 is located above the mounting frame 18, and the two ends are respectively movably fitted between the four positioning protrusions 20. The two positioning bolts 22 are respectively movably fitted into the positioning plate 21 and the upper wall surfaces of both sides of the mounting frame 18. One end of the connecting plate 23 is connected to the lower end of the mounting frame 18. The two guide bars 24 are respectively installed on the outer walls of both sides of the support frame 16. The two positioning blocks 25 are respectively movably sleeved on the outer sides of the two guide bars 24 and are respectively connected to both ends of the connecting plate 23. The two adjusting bolts 26 are respectively movably fitted into the side walls of the two positioning blocks 25, and one end is in contact with the outer walls of the two guide bars 24. The auxiliary roller is fixedly installed on the upper end of the bottom plate 1 and is located on one side of the support frame 16.

[0068] When performing drawing treatment on the tungsten wire after cleaning is completed, first, according to the overall drawing requirements of the tungsten wire, the drawing plates 19 of the specified specifications are stacked and placed in the mounting frame 18. Subsequently, the positioning plate 21 is placed on the upper end of the mounting frame 18, and the two ends of the positioning plate 21 are limited by the four positioning protrusions 20. Subsequently, the positioning plate 21 is fixed to the upper end of the mounting frame 18 through the two positioning bolts 22 to press and fix the plurality of drawing plates 19. Subsequently, the mounting frame 18 is embedded into the support frame 16, and the two ends of the mounting frame 18 are limited by the two support grooves 17. Subsequently, the height of the mounting frame 18 in the support frame 16 is changed. The connecting plate 23 and the two positioning blocks 25 located at the lower end of the mounting frame 18 move on the upper ends of the two guide bars 24. Finally, by tightening the two adjusting bolts 26, the height of the connecting plate 23 and the mounting frame 18 is fixed, so that the specified drawing plate 19 corresponds to the height of the auxiliary roller 27, and in cooperation with the winding and traction structure, the tungsten wire is drawn. And through the provided auxiliary roller 27, auxiliary guiding of the drawn tungsten wire can be realized. When it is necessary to change the drawing diameter of the tungsten wire, by means of the two provided adjusting bolts 26, the height of the mounting frame 18 can be quickly changed, and the rapid replacement of the drawing plate 19 die can be realized.

[0069] In the specific implementation process, the winding traction structure includes: four bearing blocks 28, two mounting shafts 29, two winding frames 30, six winding motors 31, six connecting plates 32, six transmission rods 33, six winding wheels 34, a flipping drive assembly, and six clamping and fixing assemblies;

[0070] The four bearing blocks 28 are respectively installed at the four corners of the upper end of the bottom plate 1. The two ends of the two mounting shafts 29 are respectively movably inserted into the four bearing blocks 28. The two sides of the lower ends of the two winding frames 30 are respectively connected to the two ends of the two mounting shafts 29. The six winding motors 31 are respectively installed on the side walls of the two winding frames 30. The six connecting plates 32 are respectively installed on the driving ends of the six winding motors 31. The six transmission rods 33 are respectively installed on the side walls of the six connecting plates 32. The six winding wheels 34 are respectively movably sleeved on the upper ends of the six transmission rods 33. One end of the flipping drive assembly is installed at the center of the upper end of the bottom plate 1, and the other end is respectively connected to the centers of the two winding frames 30. One end of the six clamping and fixing assemblies is respectively installed on the side walls of the six connecting plates 32, and the other end is respectively installed on one side of the six winding wheels 34.

[0071] When drawing, winding, and traction of the tungsten wire are carried out, first, the flipping drive assembly at the upper end of the bottom plate 1 is driven to push the two winding frames 30 and the two mounting shafts 29 to rotate in the four bearing blocks 28, so that the two winding frames 30 are flipped outward by 90 degrees. Subsequently, the staff respectively sleeved the six winding wheels 34 on the upper ends of the six transmission rods 33, and then connected them to the six connecting plates 32 through the six clamping and fixing assemblies in sequence. Subsequently, through the operation of the drive assembly, the two winding frames 30 are driven to reset. The staff connects one end of the tungsten wire to the six winding wheels 34 respectively, and then through the operation of the six set winding motors 31, the six winding wheels 34 are driven to wind and traction the tungsten wire.

[0072] In the specific implementation process, the flipping drive assembly includes: two first hinge seats 35, two second hinge seats 36, and two flipping cylinders 37;

[0073] The two first hinge seats 35 are both installed at the upper end of the bottom plate 1. The two second hinge seats 36 are respectively installed at the center positions of the side walls of the two winding frames 30. The two ends of the two flipping cylinders 37 are respectively connected to the two first hinge seats 35 and the two second hinge seats 36.

[0074] When the winding frame 30 is flipped, through the operation of the two flipping cylinders 37 arranged in the two first hinge seats 35 and the two second hinge seats 36, the distance between the first hinge seat 35 and the second hinge seat 36 is changed, and thus the flipping operation of the winding frame 30 can be realized, so as to facilitate the taking and disassembly of the winding wheel 34.

[0075] In the specific implementation process, the six clamping and fixing components all include: a fixing base 38, a clamping shaft 39, a clamping rod 40, a clamping protrusion 41, and six clamping frames 42;

[0076] The fixing base 38 is fixedly installed on the side wall of the connecting disk 32. Both ends of the clamping shaft 39 are movably inserted into the two sides of the fixing base 38 respectively. The clamping rod 40 is fixedly inserted into the clamping shaft 39. The clamping protrusion 41 is fixedly installed on the side wall of one end of the clamping rod 40. The six clamping frames 42 are all installed on the side wall of the winding wheel 34. The clamping protrusion 41 is movably inserted into one of the clamping frames 42.

[0077] When clamping and fixing the winding wheel 34, first, the winding wheel 34 is sleeved on the upper end of the transmission rod 33. Through the cooperation of the hexagonal cavity and the hexagonal transmission rod 33, the rotation of the winding wheel 34 is limited. Subsequently, one side of the clamping rod 40 is pressed down, causing the other side of the clamping rod 40 to tilt up. Then, the winding wheel 34 is pushed to move the clamping frame 42 on one side of the winding wheel 34 to correspond to the clamping protrusion 41. Subsequently, the pressed side of the clamping rod 40 is released. Under the contraction action of the elastic component between the clamping rod 40 and the connecting disk 32, the clamping rod 40 and the clamping shaft 39 rotate in the fixing base 38, and the clamping protrusion 41 is embedded into the specified clamping frame 42, thus achieving the purpose of clamping and fixing the winding wheel 34. When it is necessary to disassemble and replace the winding wheel 34, one side of the clamping rod 40 is pressed down again to separate the clamping protrusion 41 from the clamping frame 42, and the fixing effect on the winding wheel 34 can be released.

[0078] In the specific implementation process, the transmission rod 33 is a hexagonal transmission rod 33, and a hexagonal cavity is processed at the connection position between the winding wheel 34 and the transmission rod 33.

[0079] The above technical solution only reflects the preferred technical solution of the technical solution of the present invention. Some possible changes made by those skilled in the art to some parts thereof all reflect the principle of the present invention and fall within the protection scope of the present invention.

Claims

1. An efficient continuous cold drawing treatment method for electroplated tungsten wire, characterized in that, Including the following steps; Step S1: Ultrasonic alkaline cleaning. The surface degreasing operation of the tungsten wire is carried out by electrolysis to ensure that the surface of the tungsten wire is clean. The electrolytic solution is sodium hydroxide with a content of 1 - 100 g / L, a temperature of 1 - 75 °C, and a current density of 1 - 10 A / dm 2 , and the ultrasonic current is 1 - 10 A; Step S2: Nickel plating. The composition of the plating solution is: 300 - 450 g / L nickel sulfamate, 0 - 15 g / L nickel chloride, 30 - 45 g / L boric acid. The tungsten wire is activated in an acidic activation solution, washed with water, and then put into the plating bath while being charged. The pH of the bath solution is 5 - 5.5, the temperature is 18 - 35 °C, and nickel plating is carried out at a current of 1 - 30 A / dm 2 ²; Step S3: Copper plating, as an intermediate layer, to promote subsequent zinc diffusion. The plating solution composition: copper pyrophosphate (10 - 80 g / L), potassium pyrophosphate (200 - 300 g / L), pyrophosphoric acid; Process parameters: pH to 7.0 - 9.0, temperature 30 - 50 °C, current density 5 - 15 A / dm 2 ; Step S4: Zinc plating. The plating solution composition: zinc sulfate (300 - 600 g / L), sulfuric acid; Process parameters: pH 1.0 - 3.0, temperature 30 - 50 °C, current density 20 - 40 A / dm 2 ; Step S5: Thermal diffusion, aiming to form a uniform Cu-Zn alloy layer (copper); Process parameters: temperature 200 - 600 °C, copper content in the Cu-Zn alloy layer 50 - 100%; Step S6: Cold drawing, aiming to refine the wire diameter and enhance the strength; Process parameters: single-pass compression ratio: 6% - 15%, total compression ratio ≥ 50%; drawing speed: 200 - 500 m / min.

2. An efficient electroplated tungsten wire cold drawing continuous treatment method according to claim 1, characterized in that, In the said step S5, after the thermal diffusion treatment, the hard zinc oxide on the surface of the Cu-Zn alloy is cleaned with phosphoric acid or sulfuric acid solution.

3. An efficient electroplated tungsten wire cold drawing continuous treatment method according to claim 1, characterized in that, In the said step S5, first, the device is fixed to the designated position through the bottom plate, an acidic solution is injected into the cleaning box, and the electroplated tungsten wire is sequentially passed through the tension adjustment structure, drawing adjustment structure, and winding traction structure, and connected to the winding end.

4. An efficient electroplated tungsten wire cold drawing continuous treatment method according to claim 1, characterized in that In the said step S5, the tungsten wire is immersed in the pickling solution to continuously remove the oxidation layer of the Cu-Zn alloy, ensure that the drawing plate is aligned with the auxiliary roller shaft, assist in guiding the drawn tungsten wire, install six winding wheels on the transmission rod, fix them with the clamping assembly, and start the winding motor to complete traction and winding.

5. An efficient electroplated tungsten wire cold drawing continuous treatment device, adopting the efficient electroplated tungsten wire cold drawing continuous treatment method described in any one of the above claims 1-4, including a bottom plate (1), characterized in that, On one side of the upper end of the bottom plate (1), a cleaning box body (2) is installed. Inside the cleaning box body (2), a tension adjustment structure is installed. At the center of the upper end of the bottom plate (1), a drawing adjustment structure is installed. On the other side of the upper end of the bottom plate (1), a winding traction structure is installed; The tension adjustment structure includes: two guide frames (3), two fixed guide roller groups (4), two lifting guide grooves (5), two sliding blocks (6), a moving guide roller group (7), two driving frames (8), two connecting frames (9), two springs (10), two driving blocks (11), two driving grooves (12), four bearing plates (13), two lead screws (14), and two lifting driving motors (15); Two of the guiding frames (3) are respectively installed on both sides of the upper end of the cleaning box body (2). Both ends of the two fixed guiding roller groups (4) are movably inserted into the two guiding frames (3). The two lifting guiding grooves (5) are respectively installed on the inner side wall surfaces of the cleaning box body (2). The two sliding blocks (6) are respectively movably inserted into the two lifting guiding grooves (5). Both ends of the moving guiding roller group (7) are movably inserted into the two sliding blocks (6). The two driving frames (8) are respectively installed on the outer side walls of both sides of the cleaning box body (2). One ends of the two connecting frames (9) are respectively connected to the tops of the two sliding blocks (6), and the other ends movably penetrate through the upper wall surfaces of the two driving frames (8). One ends of the two springs (10) are respectively connected to the two connecting frames (9). The two driving blocks (11) are respectively movably inserted into the two driving frames (8). The two driving grooves (12) are respectively opened on the side walls of the two driving frames (8). One ends of the two driving blocks (11) respectively movably penetrate through the two driving grooves (12). The four bearing plates (13) are respectively installed at the upper and lower ends of the side walls of the two driving frames (8). Both ends of the two lead screws (14) are respectively movably inserted into the four bearing plates (13). One ends of the two driving blocks (11) are respectively movably sleeved on the upper ends of the two lead screws (14). The two lifting driving motors (15) are respectively installed at the lower ends of the two driving frames (8), and the driving ends are respectively connected to the bottom ends of the two lead screws (14).

6. An efficient electroplated tungsten wire cold drawing continuous processing device according to claim 5, characterized in that, The adjusting and drawing structure includes: a support frame (16), two support grooves (17), a mounting frame (18), a plurality of drawing plates (19), four positioning protrusions (20), a positioning plate (21), two positioning bolts (22), a connecting plate (23), two guiding strips (24), two positioning blocks (25), two adjusting bolts (26), and an auxiliary roller shaft (27); The support frame (16) is fixedly installed on one side of the upper end of the bottom plate (1) and is located on one side of the cleaning box body (2). The two support grooves (17) are respectively installed on the inner walls of both sides of the support frame (16). The two ends of the installation frame (18) are respectively movably inserted into the two support grooves (17). A plurality of drawing plates (19) are all movably inserted into the two installation frames (18). The four positioning protrusions (20) are respectively installed on both sides of the upper end of the installation frame (18). The positioning plate (21) is located above the installation frame (18), and the two ends are respectively movably inserted between the four positioning protrusions (20). The two positioning bolts (22) are respectively movably inserted into the positioning plate (21) and the upper wall surfaces of both sides of the installation frame (18). One end of the connecting plate (23) is connected to the lower end of the installation frame (18). The two guiding strips (24) are respectively installed on the outer walls of both sides of the support frame (16). The two positioning blocks (25) are respectively movably sleeved on the outer sides of the two guiding strips (24) and are respectively connected to both ends of the connecting plate (23). The two adjusting bolts (26) are respectively movably inserted into the side walls of the two positioning blocks (25), and one end is in contact with the outer walls of the two guiding strips (24). The auxiliary roller is fixedly installed on the upper end of the bottom plate (1) and is located on one side of the support frame (16).

7. An efficient electroplated tungsten wire cold drawing continuous processing device according to claim 5, characterized in that, The winding and traction structure includes: four bearing blocks (28), two mounting shafts (29), two winding frames (30), six winding motors (31), six connecting discs (32), six transmission rods (33), six winding wheels (34), a flipping drive assembly, and six clamping and fixing assemblies; The four bearing blocks (28) are respectively installed at the four corners of the upper end of the bottom plate (1). The two ends of the two mounting shafts (29) are respectively movably inserted into the four bearing blocks (28). The two sides of the lower ends of the two winding frames (30) are respectively connected to the two ends of the two mounting shafts (29). The six winding motors (31) are respectively installed on the side walls of the two winding frames (30). The six connecting discs (32) are respectively installed at the driving ends of the six winding motors (31). The six transmission rods (33) are respectively installed on the side walls of the six connecting discs (32). The six winding wheels (34) are respectively movably sleeved on the upper ends of the six transmission rods (33). One end of the flipping drive assembly is installed at the center of the upper end of the bottom plate (1), and the other end is respectively connected to the centers of the two winding frames (30). One ends of the six clamping and fixing assemblies are respectively installed on the side walls of the six connecting discs (32), and the other ends are respectively installed on one side of the six winding wheels (34).

8. An efficient electroplated tungsten wire cold drawing continuous treatment device according to claim 7, characterized in that, The flipping drive assembly includes: two first hinge seats (35), two second hinge seats (36), and two flipping cylinders (37); Both of the two first hinge seats (35) are installed at the upper end of the base plate (1), and the two second hinge seats (36) are respectively installed at the centers of the side walls of the two winding frames (30). Both ends of the two turning cylinders (37) are respectively connected to the two first hinge seats (35) and the two second hinge seats (36).

9. An efficient electroplated tungsten wire cold drawing continuous processing device according to claim 7, characterized in that, Each of the six clamping and fixing assemblies includes: a fixed seat (38), a clamping shaft (39), a clamping rod (40), a clamping protrusion (41), and six clamping frames (42); The fixed seat (38) is fixedly installed on the side wall of the connecting disk (32). Both ends of the clamping shaft (39) are respectively movably embedded in the two sides of the fixed seat (38). The clamping rod (40) is fixedly embedded in the clamping shaft (39). The clamping protrusion (41) is fixedly installed on the side wall of one end of the clamping rod (40). The six clamping frames (42) are all installed on the side wall of the winding wheel (34), and the clamping protrusion (41) is movably embedded in one of the clamping frames (42).

10. An efficient electroplated tungsten wire cold drawing continuous processing device according to claim 7, characterized in that, The transmission rod (33) is a hexagonal transmission rod (33), and a hexagonal cavity is machined at the connection position between the winding wheel (34) and the transmission rod (33).

Images